<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
  <head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
    <title>Closing Database Environments</title>
    <link rel="stylesheet" href="gettingStarted.css" type="text/css" />
    <meta name="generator" content="DocBook XSL Stylesheets V1.62.4" />
    <link rel="home" href="index.html" title="Getting Started with Berkeley DB" />
    <link rel="up" href="Env.html" title="Chapter 2. Database Environments" />
    <link rel="previous" href="Env.html" title="Chapter 2. Database Environments" />
    <link rel="next" href="EnvProps.html" title="Environment Properties" />
  </head>
  <body>
    <div class="navheader">
      <table width="100%" summary="Navigation header">
        <tr>
          <th colspan="3" align="center">Closing Database Environments</th>
        </tr>
        <tr>
          <td width="20%" align="left"><a accesskey="p" href="Env.html">Prev</a> </td>
          <th width="60%" align="center">Chapter 2. Database Environments</th>
          <td width="20%" align="right"> <a accesskey="n" href="EnvProps.html">Next</a></td>
        </tr>
      </table>
      <hr />
    </div>
    <div class="sect1" lang="en" xml:lang="en">
      <div class="titlepage">
        <div>
          <div>
            <h2 class="title" style="clear: both"><a id="EnvClose"></a>Closing Database Environments</h2>
          </div>
        </div>
        <div></div>
      </div>
      <p>
    You close your environment by calling the 
    <tt class="methodname">Environment.close()</tt>
    method. This method performs a checkpoint, so it is not necessary to perform a sync or a checkpoint explicitly
    before calling it. For information on checkpoints, see the
    <i class="citetitle">Berkeley DB Java Edition Getting Started with Transaction Processing</i> guide.
    For information on syncs, see 
    
    
    <span>
    the <i class="citetitle">Getting Started with Transaction Processing for Java</i> guide.
    </span>
    </p>
      <pre class="programlisting">import com.sleepycat.db.DatabaseException;

import com.sleepycat.db.Environment;

...

try {
    if (myDbEnvironment != null) {
        myDbEnvironment.close();
    } 
} catch (DatabaseException dbe) {
    // Exception handling goes here
} </pre>
      <p>You should close your environment(s) only after all other
    database activities have completed and you have closed any databases
    currently opened in the environment.</p>
      <p>
    Closing the last environment handle in your application causes all
    internal data structures to be 
    
    <span>
            released.
    </span>
    
    
    
    If there are any opened databases or stores, 
    then DB will complain before closing them as well. 
    At this time, any open cursors are also closed, and any on-going transactions are aborted.
    </p>
    </div>
    <div class="navfooter">
      <hr />
      <table width="100%" summary="Navigation footer">
        <tr>
          <td width="40%" align="left"><a accesskey="p" href="Env.html">Prev</a> </td>
          <td width="20%" align="center">
            <a accesskey="u" href="Env.html">Up</a>
          </td>
          <td width="40%" align="right"> <a accesskey="n" href="EnvProps.html">Next</a></td>
        </tr>
        <tr>
          <td width="40%" align="left" valign="top">Chapter 2. Database Environments </td>
          <td width="20%" align="center">
            <a accesskey="h" href="index.html">Home</a>
          </td>
          <td width="40%" align="right" valign="top"> Environment Properties</td>
        </tr>
      </table>
    </div>
  </body>
</html>
